Right, in most situations. I was thinking if the dragon ever took someone down with it, if it would be able to switch target for remaining attacks. That's where it makes a difference.
I was also thinking if it doesn't want to bother with a defender too much, especially a battlerager, it could spare one claw attack for the marking character, then 3 attacks on a second and bite a third. Action point, do it again, but this time 4 attacks go on the same person you attacked with 3 attacks previous action, and the bite goes on the battlerager so the ongoing damage will wipe away his temp HP's, and he'll be denied the BRV bonus to damage. +26 vs Reflex will hit some characters very easily, so that could be 7 hits on one character, and some more damage spread around.
This dragon is certainly a respectable threat.